<template>
    <div>
        <el-form :model="form" :rules="rules" class="login-box" label-width="80px" ref="loginForm">
            <h3 class="login-title">欢迎登陆</h3>
            <el-form-item label="账号" prop="username">
                <el-input placeholder="请输入账号" type="text" v-model="form.username"/>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input type="password" placeholder="请输入密码" v-model="form.password"/>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="onSubmit('loginForm')">登录</el-button>
            </el-form-item>
        </el-form>
        <el-dialog
            title="温馨提示"
            :visible.sync="dialogVisible"
            width="30%"
            :before-close="handleClose">
            <span slot="">请输入账号和密码</span>

            <span slot="footer" class="">
                <el-button type="primary" @click="dialogVisible=false">确定</el-button>
            </span>
        </el-dialog>

    </div>
</template>

<script>
    export default {
        name: "Login",
        data() {
            return {
                form: {
                    username: '',
                    password: ''
                },
                rules: {
                    username: [
                        {required: true, message: '账号不可为空', trigger: 'change'}
                    ],
                    password: [
                        {required: true, message: '密码不可为空', trigger: 'change'}
                    ]
                },
                dialogVisible: false
            }
        },
        methods: {
            onSubmit(formName) {
                this.$refs[formName].validate((valid) => {
                    if (valid) {
                        sessionStorage.setItem('isLogin','true')
                        this.$router.push('/main')
                    } else {
                        this.dialogVisible = true;
                        return false;
                    }
                })
            }
        }
    }
</script>

<style scoped>
    .login-box {
        border: 1px solid #dcdfe6;
        width: 350px;
        margin: 200px auto;
        padding: 35px 35px 15px 15px;
        border-radius: 5px;
        box-shadow: 0 0px 25px #909399;
    }

    .login-title {
        text-align: center;
        margin: 0 auto 40px auto;
        color: #303133;
    }
</style>